describe electrical methods of magnetisation and demagnetisation
draw the magnetic field pattern around a bar magnet and between the poles of two bar magnets
describe the plotting of magnetic field lines with a compass
distinguish between the properties and uses of temporary magnets (e.g. iron) and permanent magnets (e.g. steel)
draw the pattern of the magnetic field due to currents in straight wires and in solenoids and state the effect on the magnetic field of changing the magnitude and/or direction of the current
describe the application of the magnetic effect of a current in a circuit breaker
describe experiments to show the force on a current-carrying conductor, and on a beam of charged particles, in a magnetic field, including the effect of reversing
(i)the current(ii) the direction of the field
deduce the relative directions of force, field and current when any two of these quantities are at right angles to each other using Fleming’s left-hand rule
explain how a current-carrying coil in a magnetic field experiences a turning effect and that the effect increased by increasing
(i) the number of turns on the coil(ii) the current
LESSON VIDEOS
18.1 Magnets and Magnetic Materials
18.2 Magnetic Induction
18.3 Magnetisation and Demagnetisation
18.4 Magnetic Field
18.5a Temporary and Permanent Magnets Part 1
18.5b Temporary and Permanent Magnets Part 2
18.6 The Magnetic Effect of Current
18.7 The Motor Effect
I DO, YOU DO, WE DO! LET'S PRACTICE!
WS 18.1 Magnetic Induction, Magnetisation & Demagnetisation.pdf
WS 18.1
WS 18.2 Magnetic Fields, Temporary & Permanent Magnets.pdf